A Novel V2X-based Pedestrian Collision Avoidance System and the Effects Analysis of Communication Delay and Packet Loss on Its application

In order to enhance traffic safety and reduce traffic accidents, the V2X technology has been widely used in the field of autonomous driving. However, in the real test scenarios, communication has the disadvantages of data dissemination delay and data packets loss, which will have a significant impact on autonomous driving in some dangerous scenarios. In this paper, we choose a high-risk traffic situation that the automated vehicle prevents the potential darting-out pedestrian when passing by a blind area. First, we present a pedestrian collision avoidance system based on V2X technology. Next, we propose a new method of pedestrian collision avoidance based on V2P information. We create the danger warning area and emergency area to decide to avoid pedestrians by crossing or taking a brake. Finally, We use PreScan/Matlab to establish a pedestrian collision avoidance system and simulate the communication delay and three types of packet loss. The experimental results show the effects of collision avoidance under ideal conditions and the impact of different delay and packet loss rates on pedestrian collision avoidance system.